Lines Matching refs:tangent
621 float *tangent) in bezier_start_tangent() argument
623 tangent[0] = bez->x1; in bezier_start_tangent()
624 tangent[1] = bez->y1; in bezier_start_tangent()
625 tangent[2] = bez->x2; in bezier_start_tangent()
626 tangent[3] = bez->y2; in bezier_start_tangent()
628 if (null_line(tangent)) { in bezier_start_tangent()
629 tangent[0] = bez->x1; in bezier_start_tangent()
630 tangent[1] = bez->y1; in bezier_start_tangent()
631 tangent[2] = bez->x3; in bezier_start_tangent()
632 tangent[3] = bez->y3; in bezier_start_tangent()
634 if (null_line(tangent)) { in bezier_start_tangent()
635 tangent[0] = bez->x1; in bezier_start_tangent()
636 tangent[1] = bez->y1; in bezier_start_tangent()
637 tangent[2] = bez->x4; in bezier_start_tangent()
638 tangent[3] = bez->y4; in bezier_start_tangent()